Oil burner



Patented Nov. 25, 1924.

BENJAMIN F. WALDRON, OF DUNCAN', OKLAHOMA.

OIL BURNER.

Application med December 19, 1923. Serial No. 681,662.

To all whom z't 'may concern:

Be it known that I, BENJAMIN F. WAL- DRON, a citizen of the United States, residing at Duncan, in the county of Stephens and State of Oklahoma, have invented a new and useful Oil Burner, of which the following is a specification.

The device forming the subject matter of this application is a burner adapted to be used in boiler furnaces and elsewhere, and one object of the invention is to so construct the burner that, when the fuel is advanced out of the burner by fluid pressure, it will not be necessary to place an obstruction or target in front of the burner in order to effect a spreading and a separation of the fuel. Another object of the invention is to 'provide novel means for controlling the flow of fuel through the burner. A further object of the invention is to provide novel means for controlling the flow of the presv sure fluid.

1t is within the province of the disclosure to improve general y and to enhance the utility of devices of that type to which the in# vention appertains.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combina# tion and arrangements of parts and in the details v'of construction hereinafter described and claimed, it being understood that, with-- inltlie scope of what is claimed, changes in the precise embodiment of the invention shown, can be made, without departing from the spirit of the invention.

In the accompanying.drawings: y

Figure 1 shows in longitudinal section, a device constructed in accordance with the invention, parts being in elevation; Figure 2 is a cross section on the line 2-2 of Figure 1.

The device forming the subject matter of this application comprises a body, which is denoted generallyv by the numeral 1, the body including a nozzle 2 equipped adjacent to its rear end with an outstanding flange 3. The nozzle 2 includes an enlarged head 4 having an enlarged flared mouth 5. rllhe nozzle 2 has a cylindrical bore 6 and at the forward end of the bore 6, a tapered seat 7 is formed in the nozzle, there being a cylindrical opening 8 in the nozzle, the opening 8 being located between the inner end of the mouth 5 and the outer end of the seat 7.

The body 1 vbers 16 ing 9, having a reduced end 10, whereinto the rear end of the nozzle 2 is threaded,'the part 10 of the casing 9 abutting against the flange 3 on the nozzle. The rear end of the casing 9.is reduced as shown at 11, a nut 12 being threaded on the part 11 and serving to compress a packing 14 against the extremity of the part 11 and to effect an inward expansion of the packing. The casing 9 is provided with an internal transverse partition 15 forming a forward fuel chamber 16 and a rear pressure chamber 17 there being no communication between the chamand 17. The inlet for the chamber 16' is marked by the numeral 18, and the inlet for the chamber 17 is designated by the numeral 19. The partition 15 carries a forwardly presented nipple 2O 'extended into the fuel chamber 16, a nut 21 being threaded on the nipple, the nut serving tol compress a packing 22 against the end of the nipple and to cause the packing to expand 1nwardly. At the rear end, the casing'9 is supplied with a curved bracket 23 having a free extremity 24.

A' tubular ressure fiuid conduit 25 is located in the ore 6 of the nozzle 2 and exa tends backwardly through the packing 22, the partition 15 and its nipple 20, the packing 14 and the nut 12, the conduit 25 having a beveled forward end 26 adapted to cooperate with the seat 7 which is formed in the nozzle 2. The tubular pressure conduit 25 is threaded at 27 into the partition 15 and the nipple 20, so that the pressure conduit ma be adjusted lengthwise, for a purpose which will be made manifest hereinafter. There is no communication between the conduit 25 andthe fuel chamber 16, but communication is established between the conduit 25 and the pressure chamber 17, because the conduit is provided with any desired number of openings 28, clearly shown in Figure 1 of the drawings. The rear exposed end of the presssure conduit 25 carries an operating member 29 which may be in the form of a hand wheel, threaded ou the conduit 25 and held thereon by a nut 30, likewise threaded on the conduit, the nut serving to compress a packing 31 against the rear end of the conduit, to cause the packing to expand inwardly. The device includes a valve, comprisin a stem 32 located within the conduit 25 an extended outwardly7 and rearwardly through the packing 31 and the nut 30. The cross section or the stem 32 is such that a space 33 exists about the stem, Within the conduit 25. At its forward end, the stem 32 is equipped with a cylindrical head 34 of suchvdiameter to fit closely but slidably in the bore of the conduit 25 and the opening 8 of the nozzle 2, the opening 8 and the bore of the conduit 25 being of the saine diameter. rl`he head 34 is equipped with external spiral grooves 35. The stem 32 is threaded at 36 into the end 2dof the bracket 23. A n operating member 37, such as a hand wheel, is secured to the rear exposed end of the stem 32.

When the parts are arranged as shown in Figure l, the liquid fuel enters the chamber 16 through the inlet 18 and moves forwardly in the space 6 which exists within the nozzle about the pressure conduit 25. The. fuel traverses the seat 7, and, passing through the ooves 35 of the head 34, moves outwar ly into the flared mouth 5. Steam, air, or other duid under pressure, enters the chamber 17 by way oi' the inlet 19, and, passing through the openings 28, enters the conduit 25, the pressure fluid moving forwardly in the space 33 that exists about the stem 32, the pressure fiuid traversing the grooves 35 of the head 34 and mingling with the fuel, as the fuel moves outwardly through the grooves 35, the fuel thus being sprayed and broken up thoroughly.

The conduit 25 may be rotated through the instrumentality of the hand wheel 29, and, because the conduit is threaded at 27 linto the parts 2() and 15, the conduit, thus, may be moved lengthwise, to vary the distance betweenthe beveled end 26 of the conduit and the tapered seat 7 of the nozzle. ln this way the amount of fuel delivered may be regulated, and by advancing the conduit 25 until the end 26 thereof abuts against the Aseat 7, the Iow of fuel may be cut ed entirely. By way of the hand wheel 37, the stem 32 may be rotated, and, since the stem is threaded at 36 into the part 24 of the bracket 23, the stem will be moved ,endwise, thereby causing the head 341- to project more or less into the flared mouth 5 of the nozzle, the mixture of fuel and pressure :duid being spread more or less, as it leaves the mouth 5, depending upon the amount that the head 34 extends into the mouth 5. v

Owing to the fact that the head 34 can be adjusted lengthwise the device may be used on fire boxes of different sizes, and the dame can be regulated according to the size of the fire box, an equal degree of heat being applied to the entire heating surface, the :darne being prevented from being too great, and there being practically no danger of burning the flue sheet, the crown sheet or theside sheets.

Having thus described the invention, what I claim is:

1. in c device of the class described, a

animee body including a casing having a transverse partition, defining a pressure fluid chamber and a fuel chamber, and a nozzle connected to the casing and having a bore communicating with the fuel chamber, the nozzle being provided with an openingand being equipped with a seat located between the opening and the bore; a fuel conduit located within the nozzle and movable longitudinally in the partition into and out of engagement with the seat, the conduit having an aperture communicating with the pressure fluid chamber; and a valve embodying a stem of less diameter than the bore of the conduit and located in the conduit, the stem being provided with a head fitting closely but slidably in the opening of the nozzle and in the adjacent end of the conduit, the head being provided with a superficial groove establishing communication between the bore of the conduit and the bore of the nozzle on the one hand, and Jthe outlet end of the nozzle on the other hand, the valve beinglongitudinally movable to cause the head to project more or less into the outlet end of thenozzle.

2. In a device of the class described, a body comprising a casing having a transverse partition defining a'pressure fluid chamber and a fuel chamber, and a nozzle connected to the casing and having a bore communieating with the fuel chamber, the nozzle being provided With an opening, and being equipped with a seat located between the opening and the bore; a fuel conduit located within the nozzle and threaded into the partition for longitudinal adjustment to permit one end of the conduit to be moved into and out of engagement with the seat, the conduit having an aperture communicating with the pressure liuid chamber; and a valve embodying a stem of less diameter than the bore of the conduit and located in the conduit, the stem being provided with a head fitting closely but slidably in the opening of the nozzle and in the adjacent end of the conduit, the headbeing provided with a superficial groove establishing communication between the bore of the conduitand the bore of the nozzle on the one hand, and the outlet end of the nozzle on the other, the casing being provided with a. bracket whereintoethe stem is threaded, to secure 'a longitudinal movement of the valve and to cause the head of the valve to project more or less into the outlet end of. the nozzle.

ln testimony that l claim the foregoing as my own, I have hereto affixed by signature in the presence of two Witnesses.

BENJAMN F. WLDRON. Witnesses:

B. L. MARGH, R. H. LANDON. 

